Struggling with nDisplay and poor documentation

I’ve been trying to get nDisplay working on another machine for more than a week now and wasted lots of time because of poor documentation.

I have some simple questions and I can’t find any clear answer:

Can i run nDisplay without Switchboard? nDisplay is v1.0 while Switchboard is beta v0.1 so you would think Switchboard is not essential to running nDisplay yet all official documentation always runs nDisplay with Switchboard without showing any alternative.
In my use case it’s way more convenient to start the game with nDisplay from command line.

Can I run nDisplay without installing unreal editor? We have 10+ machines in our current (non-Unreal) setup which are all disconnected from the internet. It’s gonna be really time consuming to install UE on all of them. It seems pretty reasonable to expect that with a packaged build I don’t need UE to run the game with nDisplay. But again I can’t find a clear answer.

Do I need Switchboard listener to run nDisplay (on multiple hosts) ? If yes, how do I run the listener without UE?

Is there any clear documentation about all the command line arguments? Which ones are necessary for nDisplay? I started from the command line args that Switchboard uses but I had to remove a bunch of them otherwise I was having a black screen on startup. There are so many of them that I don’t wanna find with trial and error which argument was causing the black screen.

Thanks.